Addressing Cybersecurity Challenges in 6G Networks Through AI-Driven Adaptive Defense Mechanisms and Quantum-Resilient Protocols

The upcoming 6G networks will offer unmatched connectivity features along with virtually no latency delays while allowing fast transmissions that lead to breakthrough technologies including autonomous vehicles and smart cities and extended reality. The advancement of fifth-generation networks introduces crucial cybersecurity problems because APTs and multiple system weaknesses persist together with potential threats from quantum computers. Available security solutions must incorporate innovative methods that create resistant security infrastructure structures for current and future security threats. This study delivers both intensive evaluations of modern techniques and actual use examples then develops new integrative frameworks which link American intelligence with quantum-resistant systems. The research explores how these solutions perform in heterogeneous decentralized systems and provides practical information about deploying these solutions together with performance evaluation metrics. The research combines recent academic findings leading to secure 6G networks which solve the dual security problems of modern-day AI cyber threats and quantum vulnerabilities.